﻿using SmartPatientCentre.Common;
using SmartPatientCentre.Models;
using SmartPatientCentre.Repositories;
using SmartPatientCentre.ViewModels;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Popups;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Items Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234233

namespace SmartPatientCentre.Pages
{
    /// <summary>
    /// A page that displays a collection of item previews.  In the Split Application this page
    /// is used to display and select one of the available groups.
    /// </summary>
    public sealed partial class Patients : Page
    {
        private NavigationHelper navigationHelper;
        private ObservableDictionary defaultViewModel = new ObservableDictionary();
        public List<Patient> PatientList { get; private set; }

        /// <summary>
        /// This can be changed to a strongly typed view model.
        /// </summary>
        public ObservableDictionary DefaultViewModel
        {
            get { return this.defaultViewModel; }
        }

        /// <summary>
        /// NavigationHelper is used on each page to aid in navigation and 
        /// process lifetime management
        /// </summary>
        public NavigationHelper NavigationHelper
        {
            get { return this.navigationHelper; }
        }

        public Patients()
        {
            this.InitializeComponent();
            this.navigationHelper = new NavigationHelper(this);
            this.navigationHelper.LoadState += navigationHelper_LoadState;
        }

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="sender">
        /// The source of the event; typically <see cref="NavigationHelper"/>
        /// </param>
        /// <param name="e">Event data that provides both the navigation parameter passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
        /// a dictionary of state preserved by this page during an earlier
        /// session.  The state will be null the first time a page is visited.</param>
        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
        {
            //DefaultViewModel["Patients"] = App.Data.PatientList;
        }

        #region NavigationHelper registration

        /// The methods provided in this section are simply used to allow
        /// NavigationHelper to respond to the page's navigation methods.
        /// 
        /// Page specific logic should be placed in event handlers for the  
        /// <see cref="GridCS.Common.NavigationHelper.LoadState"/>
        /// and <see cref="GridCS.Common.NavigationHelper.SaveState"/>.
        /// The navigation parameter is available in the LoadState method 
        /// in addition to page state preserved during an earlier session.

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            navigationHelper.OnNavigatedTo(e);

            string patientType = (string)e.Parameter;

            switch (patientType)
            {
                case "My Patients":
                    pageTitle.Text = patientType;
                    DefaultViewModel["Patients"] = App.Data.PatientList;
                    break;

                case "All Patients":
                    pageTitle.Text = patientType;
                    DefaultViewModel["Patients"] = App.Data.AllPatients;
                    break;
            }

            // Get data passed from previous page
            //PatientList = e.Parameter as List<Patient>;

            // Bind data
            //DefaultViewModel["Patients"] = App.Data.PatientList;
        }

        protected override void OnNavigatedFrom(NavigationEventArgs e)
        {
            navigationHelper.OnNavigatedFrom(e);
        }

        #endregion

        // Click a Patient to see results
        private void Patient_ItemClick(object sender, ItemClickEventArgs e)
        {
            if (e.ClickedItem != null)
            {
                int id = ((Patient)e.ClickedItem).Id;
                Frame.Navigate(typeof(Pages.Results), id);
            }
        }

        // Dashboard Button
        private void DashboardButtonClick(object sender, RoutedEventArgs e)
        {
            Frame.Navigate(typeof(Pages.Dashboard));
        }

        // All Patients Button
        private void AllPatientsButtonClick(object sender, RoutedEventArgs e)
        {
            Frame.Navigate(typeof(Pages.Patients), "All Patients");
        }

        private void MyPatientsButtonClick(object sender, RoutedEventArgs e)
        {
            Frame.Navigate(typeof(Pages.Patients), "My Patients");
        }

        // Logout Button Click
        private async void LogoutButtonClick(object sender, RoutedEventArgs e)
        {
            string message = "You are about to log out. Are you sure?";
            var messageDialog = new MessageDialog(message);
            messageDialog.Commands.Add(new UICommand("Yes", delegate(IUICommand command) { Frame.Navigate(typeof(Pages.Login)); }));
            messageDialog.Commands.Add(new UICommand("No"));
            await messageDialog.ShowAsync();
        }

    }
}
